diff --git a/mtproto.php b/mtproto.php index 0a02c114..ddfa1198 100755 --- a/mtproto.php +++ b/mtproto.php @@ -241,24 +241,24 @@ class Session } assert(($pq->equals($p->multiply($q))) && ($p < $q)); pyjslib_printnl(sprintf('Factorization %s = %s * %s', $pq, $p, $q)); - $p_bytes = $this->struct->pack('>Q', (string)$p); - $q_bytes = $this->struct->pack('>Q', (string)$q); + $p_bytes = $this->struct->pack('>Q', (string) $p); + $q_bytes = $this->struct->pack('>Q', (string) $q); $f = file_get_contents(__DIR__.'/rsa.pub'); $key = new \phpseclib\Crypt\RSA(); $key->load($f); $new_nonce = \phpseclib\Crypt\Random::string(32); - $data = $this->tl->serialize_obj("p_q_inner_data", ['pq' => $pq_bytes, 'p' => $p_bytes, 'q' => $q_bytes, 'nonce' => $nonce, 'server_nonce' => $server_nonce, 'new_nonce' => $new_nonce]); + $data = $this->tl->serialize_obj('p_q_inner_data', ['pq' => $pq_bytes, 'p' => $p_bytes, 'q' => $q_bytes, 'nonce' => $nonce, 'server_nonce' => $server_nonce, 'new_nonce' => $new_nonce]); $sha_digest = sha1($data, true); $random_bytes = \phpseclib\Crypt\Random::string(((255 - strlen($data)) - strlen($sha_digest))); - $to_encrypt = $sha_digest . $data . $random_bytes; + $to_encrypt = $sha_digest.$data.$random_bytes; $encrypted_data = $key->_raw_encrypt($to_encrypt); pyjslib_printnl('Starting Diffie Hellman key exchange'); $server_dh_params = $this->method_call('req_DH_params', ['nonce' => $nonce, 'server_nonce' => $server_nonce, 'p' => $p_bytes, 'q' => $q_bytes, 'public_key_fingerprint' => $public_key_fingerprint, 'encrypted_data' => $encrypted_data]); assert($nonce == $server_dh_params['nonce']); assert($server_nonce == $server_dh_params['server_nonce']); $encrypted_answer = $server_dh_params['encrypted_answer']; - $tmp_aes_key = sha1($new_nonce . $server_nonce, true) . substr(sha1($server_nonce . $new_nonce, true), 0, 12); - $tmp_aes_iv = substr(sha1($server_nonce . $new_nonce, true), 12, 8) . sha1($new_nonce . $new_nonce, true) . substr($new_nonce, 0, 4); + $tmp_aes_key = sha1($new_nonce.$server_nonce, true).substr(sha1($server_nonce.$new_nonce, true), 0, 12); + $tmp_aes_iv = substr(sha1($server_nonce.$new_nonce, true), 12, 8).sha1($new_nonce.$new_nonce, true).substr($new_nonce, 0, 4); $answer_with_hash = crypt::ige_decrypt($encrypted_answer, $tmp_aes_key, $tmp_aes_iv); $answer_hash = substr($answer_with_hash, 0, 20); $answer = substr($answer_with_hash, 20); @@ -271,22 +271,22 @@ class Session $server_time = $server_DH_inner_data['server_time']; $this->timedelta = ($server_time - time()); pyjslib_printnl(sprintf('Server-client time delta = %.1f s', $this->timedelta)); - $dh_prime = $this->struct->unpack(">Q", $dh_prime_str); - $g_a = $this->struct->unpack(">Q", $g_a_str); + $dh_prime = $this->struct->unpack('>Q', $dh_prime_str); + $g_a = $this->struct->unpack('>Q', $g_a_str); assert($this->PrimeModule->isPrime($dh_prime)); $retry_id = 0; $b_str = \phpseclib\Crypt\Random::string(256); - $b = $this->struct->unpack(">Q", $b_str); + $b = $this->struct->unpack('>Q', $b_str); $g_b = pow($g, $b, $dh_prime); - $g_b_str = $this->struct->pack(">Q", $g_b); + $g_b_str = $this->struct->pack('>Q', $g_b); $data = serialize_obj(['client_DH_inner_data'], ['nonce' => $nonce, 'server_nonce' => $server_nonce, 'retry_id' => $retry_id, 'g_b' => $g_b_str]); - $data_with_sha = sha1($data, true) . $data; - $data_with_sha_padded = $data_with_sha . \phpseclib\Crypt\Random::string(posmod(-strlen($data_with_sha), 16)); + $data_with_sha = sha1($data, true).$data; + $data_with_sha_padded = $data_with_sha.\phpseclib\Crypt\Random::string(posmod(-strlen($data_with_sha), 16)); $encrypted_data = crypt::ige_encrypt($data_with_sha_padded, $tmp_aes_key, $tmp_aes_iv); foreach (pyjslib_range(1, $this->AUTH_MAX_RETRY) as $i) { $Set_client_DH_params_answer = $this->method_call('set_client_DH_params', ['nonce' => $nonce, 'server_nonce' => $server_nonce, 'encrypted_data' => $encrypted_data]); $auth_key = pow($g_a, $b, $dh_prime); - $auth_key_str = $this->struct->pack(">Q", $auth_key); + $auth_key_str = $this->struct->pack('>Q', $auth_key); $auth_key_sha = sha1($auth_key_str, true); $auth_key_aux_hash = substr($auth_key_sha, 0, 8); $new_nonce_hash1 = substr(sha1($new_nonce.''.$auth_key_aux_hash, true), -16); @@ -319,12 +319,12 @@ class Session public function aes_calculate($msg_key, $direction = 'to server') { $x = ($direction == 'to server') ? 0 : 8; - $sha1_a = sha1($msg_key . substr($this->auth_key, $x, ($x + 32) - $x), true); - $sha1_b = sha1(substr($this->auth_key, ($x + 32), ($x + 48) - ($x + 32)) . $msg_key . substr($this->auth_key, (48 + $x), (64 + $x) - (48 + $x)), true); - $sha1_c = sha1(substr($this->auth_key, ($x + 64), ($x + 96) - ($x + 64)) . $msg_key, true); - $sha1_d = sha1($msg_key . substr($this->auth_key, ($x + 96), ($x + 128) - ($x + 96)), true); - $aes_key = substr($sha1_a, 0, 8 - 0) . substr($sha1_b, 8, 20 - 8) . substr($sha1_c, 4, 16 - 4); - $aes_iv = substr($sha1_a, 8, 20 - 8) . substr($sha1_b, 0, 8 - 0) . substr($sha1_c, 16, 20 - 16) . substr($sha1_d, 0, 8 - 0); + $sha1_a = sha1($msg_key.substr($this->auth_key, $x, ($x + 32) - $x), true); + $sha1_b = sha1(substr($this->auth_key, ($x + 32), ($x + 48) - ($x + 32)).$msg_key.substr($this->auth_key, (48 + $x), (64 + $x) - (48 + $x)), true); + $sha1_c = sha1(substr($this->auth_key, ($x + 64), ($x + 96) - ($x + 64)).$msg_key, true); + $sha1_d = sha1($msg_key.substr($this->auth_key, ($x + 96), ($x + 128) - ($x + 96)), true); + $aes_key = substr($sha1_a, 0, 8 - 0).substr($sha1_b, 8, 20 - 8).substr($sha1_c, 4, 16 - 4); + $aes_iv = substr($sha1_a, 8, 20 - 8).substr($sha1_b, 0, 8 - 0).substr($sha1_c, 16, 20 - 16).substr($sha1_d, 0, 8 - 0); return [$aes_key, $aes_iv]; }